Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Philadelphia → Dulles via Detroit: arrives on time 80%

  1. 06:10 PHL → 07:50 DTW
    DL 1540 · Delta · 1h 40m · 91% on time, 2.5% cancelled
  2. 1h 00m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 08:50 DTW → 10:23 IAD
    DL 2884 · Delta · 1h 35m · 90% on time, 0.0% cancelled

Total trip 4h 15m, scheduled departure to arrival. Times are local. Both flew on 48 of the last 56 days.

Makes the connection91%The first flight arrived more than 15 minutes late on 9% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time80%First flight not cancelled (2.5% are) × connection made (91%) × second flight not cancelled (0.0% are) and within 15 minutes (90%).
Total trip4h 15mPHL 06:10 to IAD 10:23, layover included

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.